Milltek Non-Resonated Cat-Back Exhaust - Audi TT MK1 - 100mm JET Tips - SSXAU148

Milltek Non-Resonated Cat-Back Exhaust System for Audi TT MK1 150/180 2WD with 100mm JET polished stainless steel trim. Direct factory fitment replacement engineered to increase exhaust flow, enhance throttle response, and deliver a pronounced, track-focused tone.

Constructed from T304L stainless steel with mandrel-bent 2.50" (63.5mm) primary piping and CNC-formed 100mm polished trim tip. Non-resonated design eliminates cabin drone suppression for a raw, full-throttle character. Hand-finished joints and OEM+ fitment using factory hanger points - no modification required. Dyno-tested for repeatable power gains across the RPM band.

System Specifications

• Pipe diameter: 2.50" primary (63.5mm)
• Material: T304Lstainless steel
• Configuration: Non-resonated cat-back (closed-course/track use)
• Trim: 100mm polished JET finish
• Fitment: Audi TT MK1 150 PS / 180 PS 2WD (1998-2006)
• Installation: Direct replacement, OEM hangers, no welding

Milltek exhausts are engineered for drivers who understand the difference between flow dynamics and resonance tuning.

Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.

Specifications

• Pipe diameter: 63.5mm (2.50")
• Fitting time: 1 to 1.5 hours, including removing the factory system

Fitment

• Audi > TT MK1 > 150 / 180 2WD Coupe & Roadster > 1998 to 2006

• Free US shipping on orders over $250.
• Free pickup at our Dallas shop, usually ready within 24 hours.
• Unused parts can be returned within 30 days. Tunes, opened electronics, merch and installed parts are final sale.
• Want it installed? Book the install at thegbmotors.com.

Full details are on our shipping and returns page.